Steven Eisen, for your interest:
Pearl's tombstone says that she was 73 years old when she died on 1/1/1937 (which would have put her birth in 1863). However, her death certificate says she was 69.5, which would have put her birth in 1867. Further complicating is that Berel's naturalization papers indicate that she was born on 5/8/1871. My educated guess is that the closest to correct is that her birth date would have been 5/8/1863.